FIELD: safety systems.
SUBSTANCE: invention relates to fire alarm equipment, namely to combined annunciators maximum or maximum differential action aspiration type, and can be used for detection of fire in mass of loose combustible material. Power supply unit in device is composed of two separate units - thermo electronic generator and reference voltage generator, alarm notification is radio transmitter. Measuring chamber is made in form of cylinder and is equipped with piston with electric drive, inlet and outlet valves. Temperature sensor is located inside tip of intake pipeline.
EFFECT: technical result consists in improvement of reliability of detection of fire in place, most prone risk self-ignition, in absence of loops both power supply and signal.
1 cl, 2 dwg
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Authors
Dates
2016-04-10—Published
2015-03-06—Filed